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Finding the Fourth Proportional to 110,946.60, 166,419.90 and 40,816.80

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Solution

The fourth proportional to 110,946.60, 166,419.90 and 40,816.80 is: 61,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,946.60 : 166,419.90 = 40,816.80 : x
  2. Step 2: Convert to fraction form
    110,946.60/166,419.90 = 40,816.80/x
  3. Step 3: Cross multiply
    110,946.60x = 166,419.90 × 40,816.80
  4. Step 4: Simplify right side
    110,946.60x = 6,792,727,774.32
  5. Step 5: Solve for x
    x = 6,792,727,774.32/110,946.60
  6. Step 6: Final answer
    x = 61,225.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.